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/*
* Copyright © 2014-2017 Broadcom
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*/
/**
* @file vc5_formats.c
*
* Contains the table and accessors for VC5 texture and render target format
* support.
*
* The hardware has limited support for texture formats, and extremely limited
* support for render target formats. As a result, we emulate other formats
* in our shader code, and this stores the table for doing so.
*/
#include "util/macros.h"
#include "v3d_context.h"
#include "v3d_format_table.h"
static const struct vc5_format *
get_format(const struct v3d_device_info *devinfo, enum pipe_format f)
{
if (devinfo->ver >= 41)
return v3d41_get_format_desc(f);
else
return v3d33_get_format_desc(f);
}
bool
vc5_rt_format_supported(const struct v3d_device_info *devinfo,
enum pipe_format f)
{
const struct vc5_format *vf = get_format(devinfo, f);
if (!vf)
return false;
return vf->rt_type != V3D_OUTPUT_IMAGE_FORMAT_NO;
}
uint8_t
vc5_get_rt_format(const struct v3d_device_info *devinfo, enum pipe_format f)
{
const struct vc5_format *vf = get_format(devinfo, f);
if (!vf)
return 0;
return vf->rt_type;
}
bool
vc5_tex_format_supported(const struct v3d_device_info *devinfo,
enum pipe_format f)
{
const struct vc5_format *vf = get_format(devinfo, f);
return vf != NULL;
}
uint8_t
vc5_get_tex_format(const struct v3d_device_info *devinfo, enum pipe_format f)
{
const struct vc5_format *vf = get_format(devinfo, f);
if (!vf)
return 0;
return vf->tex_type;
}
uint8_t
vc5_get_tex_return_size(const struct v3d_device_info *devinfo,
enum pipe_format f, enum pipe_tex_compare compare)
{
const struct vc5_format *vf = get_format(devinfo, f);
if (!vf)
return 0;
if (compare == PIPE_TEX_COMPARE_R_TO_TEXTURE)
return 16;
return vf->return_size;
}
uint8_t
vc5_get_tex_return_channels(const struct v3d_device_info *devinfo,
enum pipe_format f)
{
const struct vc5_format *vf = get_format(devinfo, f);
if (!vf)
return 0;
return vf->return_channels;
}
const uint8_t *
vc5_get_format_swizzle(const struct v3d_device_info *devinfo, enum pipe_format f)
{
const struct vc5_format *vf = get_format(devinfo, f);
static const uint8_t fallback[] = {0, 1, 2, 3};
if (!vf)
return fallback;
return vf->swizzle;
}
void
vc5_get_internal_type_bpp_for_output_format(const struct v3d_device_info *devinfo,
uint32_t format,
uint32_t *type,
uint32_t *bpp)
{
if (devinfo->ver >= 41) {
return v3d41_get_internal_type_bpp_for_output_format(format,
type, bpp);
} else {
return v3d33_get_internal_type_bpp_for_output_format(format,
type, bpp);
}
}
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